A heart rate monitor can help show your fitness levels, enabling you to calculate a suitable intensity of exercise.

3.Has a barometer

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This measures barometric air pressure. It can predict weather changes, for example a sudden drop in air pressure could mean a storm is coming. When calibrated correctly it can be used to determine altitude, which helps GPS devices to lock on quicker and with greater accuracy.

4.has an accelerometer

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An accelerometer is a sensor used to measure the linear acceleration of a device. A common application is detecting when a device changes between vertical and horizontal positions.

5.has a compass

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A compass is useful in games, map and navigation software.

6.Has a temperature sensor

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With a temperature sensor you can monitor changes in temperature to measure your exertion levels and avoid hyperthermia.

Activity tracking

1.Tracks distance

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It tracks how far you travel.

2.Provides activity reports

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Your activity data is analysed to give you reports, available to view through the app or website. This allows you to see how active you have been and to help you make improvements.

3.Measures pace

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Measuring pace shows how much time it takes to travel one kilometer or one mile. For example, in running, a 4 minute kilometer would be a very good pace.

4.Has a route tracker

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With a route tracker you can add your route onto a map. It is helpful if you plan to do the same route again, or want to share it with your community.

5.Has goal setting

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Allows you to set your own goals, such as reaching 15,000 steps in a single day.

6.Counts how many calories you have burnt

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This is useful if you are on a strict training diet or if you are trying to lose weight. It can also help to boost your motivation.

Connectivity

1.Syncs wirelessly

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The device syncs all of your data wirelessly, without the need for cables.

2.Has Bluetooth

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Bluetooth is a wireless technology that allows you to easily transfer data between different devices, such as smartphones, tablets and computers.

3.Is compatible with Android

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It is compatible with a range of Android devices such as smartphones and tablets.

4.Automatically syncs

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The device automatically syncs your data when in range of your computer or smartphone.

5.Is compatible with iOS

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It is compatible with a range of iOS devices such as iPhones, iPads and the iPod Touch.

6.Supports ANT+

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ANT+ is a wireless protocol similar to Bluetooth Smart, and is very power efficient. It is mainly used for fitness monitoring devices such as heart rate monitors and cadence sensors to connect to other devices, eg. sports watches, smartphones and cycling computers.

Battery

1.has a battery level indicator

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An indicator shows you when the device has low battery.

2.battery life with GPS on

16h

24h

50h

There is less chance that you will run out of battery during an adventure.

Best

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50h

3.has a rechargeable battery

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The battery can be recharged and used over again.

4.Alerts you to low phone battery

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When your paired smartphone is running low on battery, the smartwatch will notify you.

Features

1.Has vibrating alerts

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Vibrating alerts have a variety of uses, such as interval training.

2.Has silent alarm

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The device can wake you using vibration, so as not to disturb anyone else sleeping in the room.

3.Has achievements

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You are awarded achievements for reaching goals, helping to encourage you and keep you motivated.

4.Has inactivity alerts

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The device detects when you have been idle for too long, and alerts you to encourage you to stay active.

5.Has notifications

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If you get a notification such as a call or message, the device will vibrate on your wrist or make a noise to alert you.

6.Includes access to online portal

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Your tracking data is uploaded via your smartphone or computer, and is available to view on the manufacturer’s online portal in the form of reports and graphs.

Miscellaneous

1.Has an altimeter

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An altimeter can track elevation, ascent and descent using GPS or air pressure. It is particularly useful if you travel on hills or mountains.

2.Has trackback mode

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This feature enables you to track your route and reverse it in order to guide you back to where you began your journey.

3.Can upload maps

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You can upload different maps to your device. It is handy for people who like to explore new places.

4.Informs about the risk of thunderstorms

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It can provide you with information about the likelihood of a thunderstorm. This could be very useful to plan your day.

5.Has a world timer

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With a world timer you can easily see the time all over the globe. It is useful if you are travelling through different time zones.

6.Is geocaching friendly

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Geocaching friendly devices enable you to join in the global game of geocaching, hiding and finding treasures.